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IMPROVED TONER HOPPER

IP.com Disclosure Number: IPCOM000025585D
Original Publication Date: 1986-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 4 page(s) / 86K

Publishing Venue

Xerox Disclosure Journal

Abstract

A toner hopper for a xerographic based laser printer designed to reduce or eliminate toner bridgmg within the hopper, spillage of toner when adding fresh toner and which provides a shield to prevent a person servicing the printer frorn.being exposed to the laser printing beam

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This is the abbreviated version, containing approximately 83% of the total text.

Page 1 of 4

XEROX DISCLOSURE JOURNAL

IMPROVED TONER HOPPER

George E. Bell
F. Lee Johnson

Proposed Classification U S C1.35513DD
Int. Cl. G03g 15/00

Volume If Number 3 May/June 1986 117

[This page contains 1 picture or other non-text object]

Page 2 of 4

IMPROVED TONER HOPPER (Cont'd)

FIG 2

XEROX 118 DISCLOSURE JOURNAL

Volume I1 Number 3 May/June 1986

[This page contains 1 picture or other non-text object]

Page 3 of 4

IMPROVED TONER HOPPER (Cont'd)

A toner hopper for a xerographic based laser printer designed to reduce or eliminate toner bridgmg within the hopper, spillage of toner when adding fresh toner and which provides a shield to prevent a person servicing the printer frorn.being exposed to the laser printing beam

Referring to the drawing figures, the hopper 4 comprises an elongated, generally rectangular box 5 with a slot-like toner dispensing opening 6 extending lonptudinally along the base or bottom. Holes 7 are provided in the ends 8 of hopper 4 just above opening 6 to receive the shaft 9 of a rotary toner dispensing roller (not shown)

The sides I0 of hopper 4 have negative sloping upper wall sections 11 with large radii lower wall sections 12 to help avoid toner bridgmg and tendency of the toner to collect an the corners of hopper 4. A single opening 14 in the top wall 15 of hopper 4 at the center 1s provided for adding fresh toner to hopper 4,
the single opening 14 reducing toner spillage and loss when fresh toner 1s being added to hopper 5 A pair of molded wings 1...